Hitachi C 7SB2/C Technical Data And Service Manual

Hitachi C 7SB2/C Technical Data And Service Manual

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CIRCULAR SAWS

C 7SB2/C 7BD2
LIST Nos. C 7SB2: 0591
C 7BD2: 0592
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
MODELS
Hitachi
Power Tools
Revised Aug. 2005
C 7SB2
C 7BD2
TECHNICAL DATA
AND
SERVICE MANUAL
C

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Summary of Contents for Hitachi C 7SB2/C

  • Page 1: Circular Saws

    MODELS C 7SB2 C 7BD2 Hitachi Power Tools TECHNICAL DATA CIRCULAR SAWS C 7SB2/C 7BD2 SERVICE MANUAL LIST Nos. C 7SB2: 0591 Revised Aug. 2005 C 7BD2: 0592 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT...
  • Page 2 REMARK: Throughout this TECHNICAL DATA AND SERVICE MANUAL, a symbol(s) is(are) used in the place of company name(s) and model name(s) of our competitor(s). The symbol(s) utilized here is(are) as follows: Competitors Symbols Utilized Company Name Model Name 5007NH MAKITA 5007NBA DW368 DEWALT...
  • Page 3: Table Of Contents

    CONTENTS Page 1. PRODUCT NAME ..........................1 2. MARKETING OBJECTIVE ......................1 3. APPLICATIONS ..........................1 4. SELLING POINTS ........................... 1 4-1. Selling Point Descriptions ........................ 2 5. SPECIFICATIONS ........................... 3 6. COMPARISONS WITH SIMILAR PRODUCT ................. 4 6-1. Specification Comparison ........................ 4 6-2.
  • Page 4: Product Name

    1. PRODUCT NAME Hitachi 7-1/4" Circular Saws, Models C 7SB2 and C 7BD2 2. MARKETING OBJECTIVE The current mainstream of professional-use circular saws is the 7-1/4 " (185 mm) class in the North America market. Although we have been selling the Models C 7SB and C 7BD (with brake) of this class, over 10 years have passed since the sales start in 1989.
  • Page 5: Selling Point Descriptions

    The Models C 7SB2 for USA and C 7BD2 are equipped with the 24-tooth carbide tipped saw blade that is the current mainstream of standard saw blade. Green urethane painting is applied on the surface to distinguish the Hitachi saw blade from others at a glance. (4) Soft and comfortable grip The non-slip, soft and comfortable grip is adopted to improve the operability.
  • Page 6: Specifications

    5. SPECIFICATIONS Model C 7SB2 C 7BD2 Item Saw blade diameter 7-1/4" (185 mm) at 90˚ 2-3/8" (60 mm) Max. at 45˚ 1-27/32" (47 mm) cutting 1-11/16" (43 mm) at 50˚ (for USA, AUS and NZL) depth at 55˚ (for USA, AUS and NZL) 1-17/32"...
  • Page 7: Comparisons With Similar Product

    6. COMPARISONS WITH SIMILAR PRODUCT 6-1. Specification Comparison Maker Model • HITACHI HITACHI Item Unit C 7SB2 C 7SB 5007NH DW368 C 7BD2 C 7BD 5007NBA DW369CS • 2-3/8 2-3/8 2-3/8 2-3/8 2-3/8 2-3/8 Cutting 90˚ (60) (60) (60) (mm)
  • Page 8: Practical Test Data

    Hemlock spruce (thickness 60 mm), vertical cutting HITACHI C 7SB2/C 7BD2 (for Cutting speed (m/min.) This graph shows the relation between the cutting speed and the load current. If the load current is low, the load applied to the motor is also low, and generally the cutting capacity is more excellent when comparing the cutting capacity at the same speed.
  • Page 9: Precautions In Sales Promotion

    7. PRECAUTIONS IN SALES PROMOTION In the interest of promoting the safest and most efficient use of the Models C 7SB2 and C 7BD2 Circular Saws by all of our customers, it is very important that at the time of sale the salesman carefully ensures that the buyer seriously recognizes the importance of the contents of the Instruction Manual, and fully understands the meaning of the precautions listed on the Name Plate attached to each tool.
  • Page 10: Do Not Use Cut-Off Wheels

    For Europe 7-3. Do Not Use Cut-Off Wheels The Models C 7SB2 and C 7BD2 are not designed for use with cut-off wheels (grindstones). The customers must be cautioned that the use of a cut-off wheel would be extremely dangerous. --- 7 ---...
  • Page 11: Precautions In Disassembly And Reassembly

    8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY The [Bold] numbers in the descriptions below correspond to the item numbers in the Parts List for the Model C 7SB2, and the <Bold> numbers for the Model C 7BD2. During disassembly and reassembly, and at all other times as well, sufficient care must be exercised in handling to ensure that is no deviation in the flatness of the bottom surface of the base and in its perpendicularity with relation to the saw blade.
  • Page 12: Reassembly

    8-2. Reassembly Reassembly can be accomplished by following the disassembly procedures in reverse. However, particular attention should be given to the following items. (1) Tightening torque for fastening screws: M4 machine screws 0.4 N m (12 to 19 in-lbs.) • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •...
  • Page 13 (5) Wiring diagrams (See Figs. from 3 to 6.): A. Model C 7SB2 For the U.S.A. Black Stator coil White Power source Black Stator coil Fig. 3 For AUS/GBR (110 V) Fig. 4 For NZL/Europe Fig. 5 --- 10 ---...
  • Page 14 B. Model C 7BD2 Black Blue Power source Yellow Brake coil White Black Stator coil Fig. 6 --- 11 ---...
  • Page 15 (6) Internal wire arrangement (See Figs. from 7 to 10.): Connect internal wires as illustrated in Figs. from 7 to 10. At this time, ensure that none of the wires are pinched between components during reassembly. A. Model C 7SB2 For the U.S.A.
  • Page 16 For NZL/Europe Fig. 9 B. Model C 7BD2 Black Blue Yellow White Black Fig. 10 --- 13 ---...
  • Page 17 (7) Insulation tests: On completion of disassembly and repair, measure the insulation resistance and conduct dielectric strength test. Insulation resistance: 7 M Ω or more with DC 500 V Megohm Tester Dielectric strength: AC 2,500V/1 minute, with no abnormalities (8) Cleaning the cover: Clean the exterior of the tool with a soft cloth moistened with soapy water, and dry thoroughly.
  • Page 18: Standard Repair Time (Unit) Schedules

    9. STANDARD REPAIR TIME (UNIT) SCHEDULES Variable 60 min. MODEL Fixed Work Flow C 7SB2 C 7BD2 Switch Cord Housing Ass'y Stator Ass'y General Assembly Safety Cover Armature Return Spring Ball Bearing (6202VV) Ball Bearing (6000VV) Gear Cover Spindle and Gear Set Ball Bearing (6003VV)
  • Page 19 Hitachi Power Tools LIST NO. 0591 ELECTRIC TOOL PARTS LIST CIRCULAR SAW 2005 • • Model C 7SB2 (E2)
  • Page 20 WASHER (B) 324-598 WASHER (B) FOR EUROPE 320-971 BOLT (W/FLANGE) M8X15.5 324-594 BLADE COVER 951-039 MACHINE SCREW (W/SP. WASHER) M4X12 HITACHI LABEL 308-357 MACHINE SCREW (W/WASHERS) M5X55 NAME PLATE 320-951 HOUSING ASS’Y INCLUD. 40, 42 600-0VV BALL BEARING 6000VVCMPS2L 302-428...
  • Page 21 PARTS C 7SB2 ITEM CODE NO. REMARKS DESCRIPTION USED 301-653 TAPPING SCREW (W/FLANGE) D4X20 (BLACK) 938-241 BRUSH HOLDER 999-038 CARBON BRUSH (1 PAIR) 945-161 BRUSH CAP 958-049 CORD ARMOR D8.2 940-778 CORD ARMOR D10.7 500-453Z CORD (CORD ARMOR D10.7) 500-439Z CORD (CORD ARMOR D8.2) FOR AUS, NZL 500-435Z...
  • Page 22 STANDARD ACCESSORIES C 7SB2 ITEM CODE NO. DESCRIPTION REMARKS USED 321-188 CASE 940-543 BOX WRENCH 10MM 302-691 GUIDE 1 FOR AUS, NZL, EUROPE OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 302-691 GUIDE --- 4 --- Printed in Japan 7 -- 05 * ALTERNATIVE PARTS (050708N)
  • Page 23 Hitachi Power Tools LIST NO. 0592 ELECTRIC TOOL PARTS LIST CIRCULAR SAW 2005 • • Model C 7BD2 (E2) 49 50...
  • Page 24 TCT SAW BLADE 185MM-D16 HOLE-NT24 320-953 WASHER (B) 320-971 BOLT (W/FLANGE) M8X15.5 324-594 BLADE COVER 951-039 MACHINE SCREW (W/SP. WASHER) M4X12 HITACHI LABEL 308-357 MACHINE SCREW (W/WASHERS) M5X55 NAME PLATE 320-951 HOUSING ASS’Y INCLUD. 40, 42 600-0VV BALL BEARING 6000VVCMPS2L...
  • Page 25 PARTS C 7BD2 ITEM CODE NO. REMARKS DESCRIPTION USED 320-950 SWITCH (1P SCREW TYPE) 305-720 TAPPING SCREW (W/FLANGE) D4X12 320-952 HANDLE COVER 320-967 GRIP COVER 322-260 SEAL LOCK SCREW (W/SP. WASHERS) M6X14 322-600 LEVER (A) W/STOPPER 322-261 LOCK NUT SET (W/SCREW) 320-975 WASHER 320-961...
  • Page 26 STANDARD ACCESSORIES C 7BD2 ITEM CODE NO. DESCRIPTION REMARKS USED 321-188 CASE 320-976 WRENCH 10MM OPTIONAL ACCESSORIES ITEM CODE NO. DESCRIPTION REMARKS USED 302-691 GUIDE --- 4 --- Printed in Japan 8 -- 05 * ALTERNATIVE PARTS (050810N)

This manual is also suitable for:

C 7bd2

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